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1 | /* |
2 | * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | ||
33 | #ifndef MLX4_IB_H | |
34 | #define MLX4_IB_H | |
35 | ||
36 | #include <linux/compiler.h> | |
37 | #include <linux/list.h> | |
38 | ||
39 | #include <rdma/ib_verbs.h> | |
40 | #include <rdma/ib_umem.h> | |
41 | ||
42 | #include <linux/mlx4/device.h> | |
43 | #include <linux/mlx4/doorbell.h> | |
44 | ||
45 | enum { | |
46 | MLX4_IB_DB_PER_PAGE = PAGE_SIZE / 4 | |
47 | }; | |
48 | ||
49 | struct mlx4_ib_db_pgdir; | |
50 | struct mlx4_ib_user_db_page; | |
51 | ||
52 | struct mlx4_ib_db { | |
53 | __be32 *db; | |
54 | union { | |
55 | struct mlx4_ib_db_pgdir *pgdir; | |
56 | struct mlx4_ib_user_db_page *user_page; | |
57 | } u; | |
58 | dma_addr_t dma; | |
59 | int index; | |
60 | int order; | |
61 | }; | |
62 | ||
63 | struct mlx4_ib_ucontext { | |
64 | struct ib_ucontext ibucontext; | |
65 | struct mlx4_uar uar; | |
66 | struct list_head db_page_list; | |
67 | struct mutex db_page_mutex; | |
68 | }; | |
69 | ||
70 | struct mlx4_ib_pd { | |
71 | struct ib_pd ibpd; | |
72 | u32 pdn; | |
73 | }; | |
74 | ||
75 | struct mlx4_ib_cq_buf { | |
76 | struct mlx4_buf buf; | |
77 | struct mlx4_mtt mtt; | |
78 | }; | |
79 | ||
80 | struct mlx4_ib_cq { | |
81 | struct ib_cq ibcq; | |
82 | struct mlx4_cq mcq; | |
83 | struct mlx4_ib_cq_buf buf; | |
84 | struct mlx4_ib_db db; | |
85 | spinlock_t lock; | |
86 | struct ib_umem *umem; | |
87 | }; | |
88 | ||
89 | struct mlx4_ib_mr { | |
90 | struct ib_mr ibmr; | |
91 | struct mlx4_mr mmr; | |
92 | struct ib_umem *umem; | |
93 | }; | |
94 | ||
95 | struct mlx4_ib_wq { | |
96 | u64 *wrid; | |
97 | spinlock_t lock; | |
0e6e7416 RD |
98 | int wqe_cnt; |
99 | int max_post; | |
225c7b1f RD |
100 | int max_gs; |
101 | int offset; | |
102 | int wqe_shift; | |
103 | unsigned head; | |
104 | unsigned tail; | |
105 | }; | |
106 | ||
107 | struct mlx4_ib_qp { | |
108 | struct ib_qp ibqp; | |
109 | struct mlx4_qp mqp; | |
110 | struct mlx4_buf buf; | |
111 | ||
112 | struct mlx4_ib_db db; | |
113 | struct mlx4_ib_wq rq; | |
114 | ||
115 | u32 doorbell_qpn; | |
116 | __be32 sq_signal_bits; | |
0e6e7416 | 117 | int sq_spare_wqes; |
225c7b1f RD |
118 | struct mlx4_ib_wq sq; |
119 | ||
120 | struct ib_umem *umem; | |
121 | struct mlx4_mtt mtt; | |
122 | int buf_size; | |
123 | struct mutex mutex; | |
124 | u8 port; | |
125 | u8 alt_port; | |
126 | u8 atomic_rd_en; | |
127 | u8 resp_depth; | |
0e6e7416 | 128 | u8 sq_no_prefetch; |
225c7b1f RD |
129 | u8 state; |
130 | }; | |
131 | ||
132 | struct mlx4_ib_srq { | |
133 | struct ib_srq ibsrq; | |
134 | struct mlx4_srq msrq; | |
135 | struct mlx4_buf buf; | |
136 | struct mlx4_ib_db db; | |
137 | u64 *wrid; | |
138 | spinlock_t lock; | |
139 | int head; | |
140 | int tail; | |
141 | u16 wqe_ctr; | |
142 | struct ib_umem *umem; | |
143 | struct mlx4_mtt mtt; | |
144 | struct mutex mutex; | |
145 | }; | |
146 | ||
147 | struct mlx4_ib_ah { | |
148 | struct ib_ah ibah; | |
149 | struct mlx4_av av; | |
150 | }; | |
151 | ||
152 | struct mlx4_ib_dev { | |
153 | struct ib_device ib_dev; | |
154 | struct mlx4_dev *dev; | |
155 | void __iomem *uar_map; | |
156 | ||
157 | struct list_head pgdir_list; | |
158 | struct mutex pgdir_mutex; | |
159 | ||
160 | struct mlx4_uar priv_uar; | |
161 | u32 priv_pdn; | |
162 | MLX4_DECLARE_DOORBELL_LOCK(uar_lock); | |
163 | ||
164 | struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2]; | |
165 | struct ib_ah *sm_ah[MLX4_MAX_PORTS]; | |
166 | spinlock_t sm_lock; | |
167 | ||
168 | struct mutex cap_mask_mutex; | |
169 | }; | |
170 | ||
171 | static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev) | |
172 | { | |
173 | return container_of(ibdev, struct mlx4_ib_dev, ib_dev); | |
174 | } | |
175 | ||
176 | static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) | |
177 | { | |
178 | return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext); | |
179 | } | |
180 | ||
181 | static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd) | |
182 | { | |
183 | return container_of(ibpd, struct mlx4_ib_pd, ibpd); | |
184 | } | |
185 | ||
186 | static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq) | |
187 | { | |
188 | return container_of(ibcq, struct mlx4_ib_cq, ibcq); | |
189 | } | |
190 | ||
191 | static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq) | |
192 | { | |
193 | return container_of(mcq, struct mlx4_ib_cq, mcq); | |
194 | } | |
195 | ||
196 | static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr) | |
197 | { | |
198 | return container_of(ibmr, struct mlx4_ib_mr, ibmr); | |
199 | } | |
200 | ||
201 | static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp) | |
202 | { | |
203 | return container_of(ibqp, struct mlx4_ib_qp, ibqp); | |
204 | } | |
205 | ||
206 | static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp) | |
207 | { | |
208 | return container_of(mqp, struct mlx4_ib_qp, mqp); | |
209 | } | |
210 | ||
211 | static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq) | |
212 | { | |
213 | return container_of(ibsrq, struct mlx4_ib_srq, ibsrq); | |
214 | } | |
215 | ||
216 | static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq) | |
217 | { | |
218 | return container_of(msrq, struct mlx4_ib_srq, msrq); | |
219 | } | |
220 | ||
221 | static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah) | |
222 | { | |
223 | return container_of(ibah, struct mlx4_ib_ah, ibah); | |
224 | } | |
225 | ||
226 | int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order); | |
227 | void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db); | |
228 | int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt, | |
229 | struct mlx4_ib_db *db); | |
230 | void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db); | |
231 | ||
232 | struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc); | |
233 | int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt, | |
234 | struct ib_umem *umem); | |
235 | struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, | |
236 | u64 virt_addr, int access_flags, | |
237 | struct ib_udata *udata); | |
238 | int mlx4_ib_dereg_mr(struct ib_mr *mr); | |
239 | ||
240 | struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector, | |
241 | struct ib_ucontext *context, | |
242 | struct ib_udata *udata); | |
243 | int mlx4_ib_destroy_cq(struct ib_cq *cq); | |
244 | int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); | |
245 | int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags); | |
246 | void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); | |
247 | void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); | |
248 | ||
249 | struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); | |
250 | int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr); | |
251 | int mlx4_ib_destroy_ah(struct ib_ah *ah); | |
252 | ||
253 | struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, | |
254 | struct ib_srq_init_attr *init_attr, | |
255 | struct ib_udata *udata); | |
256 | int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, | |
257 | enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); | |
258 | int mlx4_ib_destroy_srq(struct ib_srq *srq); | |
259 | void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index); | |
260 | int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, | |
261 | struct ib_recv_wr **bad_wr); | |
262 | ||
263 | struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd, | |
264 | struct ib_qp_init_attr *init_attr, | |
265 | struct ib_udata *udata); | |
266 | int mlx4_ib_destroy_qp(struct ib_qp *qp); | |
267 | int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
268 | int attr_mask, struct ib_udata *udata); | |
269 | int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, | |
270 | struct ib_send_wr **bad_wr); | |
271 | int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, | |
272 | struct ib_recv_wr **bad_wr); | |
273 | ||
274 | int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey, | |
275 | int port, struct ib_wc *in_wc, struct ib_grh *in_grh, | |
276 | void *in_mad, void *response_mad); | |
277 | int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, | |
278 | struct ib_wc *in_wc, struct ib_grh *in_grh, | |
279 | struct ib_mad *in_mad, struct ib_mad *out_mad); | |
280 | int mlx4_ib_mad_init(struct mlx4_ib_dev *dev); | |
281 | void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev); | |
282 | ||
283 | static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah) | |
284 | { | |
285 | return !!(ah->av.g_slid & 0x80); | |
286 | } | |
287 | ||
288 | #endif /* MLX4_IB_H */ |